EVALUATION FRAMEWORK OF FUNCTIONAL DISRUPTION OF ROAD NETWORKS DURING A TSUNAMI DISASTER

• ITOH Shiori

  元 筑波大学大学院 システム情報工学研究科

• SHOJI Gaku

  筑波大学 システム情報系

Bibliographic Information

Other Title

• 道路ネットワークの津波災害時における機能支障の定量的評価

Abstract

 A method to evaluate the system reliability of road networks during a catastrophic tsunami disaster was newly proposed based on physical tsunami damage functions of roads and bridges, which were derived by assessment for damage data in the 2011 off the Pacific coast of Tohoku earthquake tsunami. In the framework, the features of shortest routes between targeted substantial public facilities in a tsunami disaster are identified by using Dijkstra Algorism. In addition, the features of routes between them preferentially passing through main roads are identified. Finally, vulnerable roads and bridges on which tsunami countermeasures should be taken and which should be restored preferentially are revealed. This proposed framework was applied to the case studies for road networks in Tokushima city, which is expected to be suffered greatly from the anticipated Nankai Trough earthquake tsunami, and the possibility of road disruption in a tsunami disaster was also investigated.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 74 (4), I_120-I_130, 2018

  Japan Society of Civil Engineers

Keywords

• the 2011 off the Pacific coast of Tohoku earthquake
• road networks
• bridge
• tsunami
• reliability
• the anticipated Nankai Trough earthquake

Details

• CRID: 1390564238025461248
• NII Article ID: 130007486257
• DOI: 10.2208/jscejseee.74.i_120
• ISSN: 21854653
• Web Site: https://www.jstage.jst.go.jp/article/jscejseee/74/4/74_I_120/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed